Author Archives: molic786

Final documentation – Carla Molins

This is my final blog post including all deliverables required:

1.Final presentation

2. My final documentation below.

The Issuu document covers: Concept + Goals, Intended audience, Precedents, Description of the project, Materials list, Process + Prototypes, Circuit diagram + Code, Challenges, and Conclusion. In addition, I have included part of my research too because it’s important to understand the nature of my project.

3. Video documentation

WEEK 12- Technical prototype- Carla Molins

1) Iteration

For this week’s progress, I’ve been figuring out the mechanism that will power my project.

Step 1: Achieve the base system of the moving plaque.

The Arduino and the stepper motor pull the pattern and release it again. This is a rough prototype to prove that works.

This video shows how the stepper motor turns pulling for several steps until it stops and it releases again.

The next step should be trying to get a more reliable and stable prototype.

2) Your playtesting plan and desired feedback.

I’m planning on keep testing the prototype while I’m upgrading each part on D12.

There is still a lot of work to do to be able to test how the main interaction works.


“The Dark Matter hut” – Final Concept Carla Molins

  • Refined project description

My concept is a little bit abstract, so I’m going to show my design question first:

How might a concept without visible instance like dark matter be represented for a better understanding?

My concept in order to answer that is a Experiential apparatus/ installation on perceiving a scientific concept (dark matter) for a better understanding.

This concept is based on a experimental installation trying to explore on different ways to “visualize” the concept including all senses but emphasizing haptics.

A whole system of small micro-experiences could be the result within a context of a bigger exhibition space such a science museum space installation.

  • Interaction/systems diagram

I’m still trying to define the form of my project, right now what I have in mind is this. I need to run several test to see if it’s feasible and it works as expected.

At this point, I see the installation in the shape of a haptic teepee. The user gets in to experience  dark matter by touching and triggering the system with those interactions.

This is a more defined sketch. The inner pyramid, the cubicle, it’s covered by latex ( 2 sides + entrance. The outer structure has 2 sides of lights made of a mesh of LED’s. In between, there is a layer of chipboard connected to a stepper motor that will change its shape depending  on the tension applied to the material by pulling a string and bending the board.


This tension will change the shape and as a consequence the shadow projected to the latex might seem closer or farther.

This is a more detailed drawing of the tech schematics.

  • Timeline with milestones

  • Materials list


  • Arduino
  • Power supply
  • Wire
  • 2 steppers
  • Capacitive sensors
  • 1 x Speaker
  • Led Mesh
  • Strings and rubber bands
  • Capacitive shield
  • conductive material
  • Solder


  • Chipboard
  • PVC tubes and connectors
  • Latex
  • Precedents or references
  • Referents




TAP BOX – Carla Molins

  • Goal of the project and/or desired interaction

Music box that creates different tones through 8 different capacitive sensors (tags). I wanted to try out a different interface for the instrument that provided a tactile experience too.

  • Quick description of assembly and list of core components

– 1x Arduino

– 1 x medium breadboard.

-CAP1188-8-Key Capacitive Touch Sensor Breakout

– Wires

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WEEK 5 hw – Carla Molins



  • Goal of the project and/or desired interaction

Create a circuit that activates an LED just when both photocell is covered and ultrasonic sensor has something close enough.

  • Quick description of assembly and list of core components

1x Arduino

1 x medium breadboard.

1 x red LED

1x ultrasonic sensor

1 x photocell

1x resistors (220 ohms) – resistor

1 x resistors ( 10K ohms) – photocell

Jump wires

  • How it works

By default the light is off (LOW). When the photocell is covered OR the ultrasonic detects an object the LED stays the same. Just when both are covered triggers the system to light up the LED.

  • Any problems you encountered and/or solved

I had to think through my if statements before coding.

Images of your circuit Continue reading

Simon’s locker- Carla Molins


  • Goal of the project and/or desired interaction

The goal of the project was to create a locker that opened (green light) when the right color code was pressed ( 4 different colours). The light must be red while the code remains wrong.

  • Quick description of assembly and list of core components

1x Arduino

1 x medium breadboard.

1x green LED

1 x red LED

4 x buttons

2 x resistors (220 ohms) – resistors

4 x resistors ( 10K ohms) – buttons


  • How it works

My proposal includes a counter that allows to keep tracking of the correct sequence thanks to validating certain if statements. At the end, green LED lights up, and after blinking and a short delay, red light turns ON again, and it’s locked again reseting the counter to start again.

  • Any problems you encountered and/or solved

I had problems to find the correct sequence that allowed to keep the good sequence. My counter kept reseting until I debugged the code.

Images of your circuit 


Arduino Code

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